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SEALED ENCLOSURES
NOTE: Vb is the gross volume, which is the TOTAL internal volume, before any speaker and/or port displacement.
All external dimensions were based on the use of 3/4" (1.90cm) materials.
NOTE: When using enclosures other than recommended, call Technical Support for correct application.
Optimum Sealed Enclosure Recommendation
Recommended Sealed Enclosure Volume Range
SEALDED ENCLOSURES
8 11
1011
12 11
15 11
Pl 8481 Pl S88
P1S410 1 Pl881 0
P1S412 1 Pl8812 P1S415 1 Pl8815
Vb- Internal Area cu. ft.
0.23
0.59
1.02
1.58
(Liter)
(6.51)
(16.42)
(28.88)
(44.74)
F3- -3dB Point (Hz)
62.1
50.9
43.5
39.0
Qtc- Enclosure Damping
0.877
0.875
1.097
1.266
H - Height-inch
10.0
12.0
14.0
18.0
(cm)
(25.40)
(30.48)
(35.56)
(45.72)
W - Width-inch
12.0
14.0
18.0
21.0
(cm)
(30.48)
(35.56)
(45.72)
(53.34)
D- Depth-inch
6.0
9.25
10.0
10.0
(cm)
(15.24)
(23.50)
(25.40)
(25.40)
VENTED ENCLOSURES
SEALDED ENCLOSURES
8 11
Pl 848/ Pl S88
Vb- Volume Range cu. ft.
0.20 to 0.30
(Liter)
(5.66 to 8.50)
1011
12 11
15 11
Pl S41 0 1 Pl881 0
P1S412 1 Pl8812 P1S415 1 P1S815
0.50 to 0.85
0.70 to 1.80
1.30 to 3.50
(14.16 to 24.07)
(19.82 to 50.97)
(36.81 to 99.10)
Specifications subject to change without notice
NOTE: Vb is the gross volume, which is the TOTAL internal volume, before any speaker and/or port displacement.
All external dimensions were based on the use of 3/4" (1.90cm) materials.
NOTE: When using enclosures other than recommended, call Technical Support for correct application.
Optimum Vented (Ported) Enclosure Sizes
VENTED ENCLOSURES
8 11
1011
12 11
15 11
P1 8481 Pl S88
Pl S41 0 1 Pl881 0
P1S412 1 Pl8812 P1S415 1 Pl8815
Vb- Internal Area cu. ft.
0.65
1.40
1.79
2.66
(Liter)
(18.41)
(39.64)
(50.69)
(75.32)
Fb- Tuning Frequency (Hz)
42.7
37.3
36.3
34.4
F3- -3dB Point (Hz)
36.8
32.6
34.4
33.9
H - Height-inch
12.0
12.0
14.0
18.0
(cm)
(30.48)
(30.48)
(35.56)
(45.72)
W - Width-inch
18.0
20.0
25.0
28.0
(cm)
(45.72)
(50.80)
(63.50)
(71.12)
D- Depth-inch
8.0
14.0
12.0
12.0
(cm)
(20.32)
(35.56)
(30.48)
(30.48)
P- Port Diameter and
Length-inch
(1) 2 x 6
(1) 3 x 8
(1) 3 x 6
(1) 4 x 8
(cm)
(1) (5.08 x 15.24)
(1) (7.62 x 20.32)
(1) (7.62 x 15.24)
(1) (10.16 x 20.32)
Number
of
ports noted in ( )
Specifications subject to change without notice
NOTE: The port shown can be placed on any face of the enclosure as long as the port ends are not obstructed.
3
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